Sideband cooling of micromechanical motion to the quantum ground state

J. D. Teufel (), T. Donner, Dale Li, J. W. Harlow, M. S. Allman, K. Cicak, A. J. Sirois, J. D. Whittaker, K. W. Lehnert and R. W. Simmonds
Additional contact information
J. D. Teufel: National Institute of Standards and Technology (NIST)
T. Donner: JILA, University of Colorado and NIST
Dale Li: National Institute of Standards and Technology (NIST)
J. W. Harlow: JILA, University of Colorado and NIST
M. S. Allman: National Institute of Standards and Technology (NIST)
K. Cicak: National Institute of Standards and Technology (NIST)
A. J. Sirois: National Institute of Standards and Technology (NIST)
J. D. Whittaker: National Institute of Standards and Technology (NIST)
K. W. Lehnert: JILA, University of Colorado and NIST
R. W. Simmonds: National Institute of Standards and Technology (NIST)

Nature, 2011, vol. 475, issue 7356, 359-363

Abstract: Micromechanical motion grounded It has been a long-standing goal in the field of cavity optomechanics to cool down a mechanical resonator to its motional quantum ground state by using light. Teufel et al. have now achieved just that with a recently developed system in which a drum-like flexible aluminium membrane is incorporated in a superconducting circuit. Ground-state cooling of a mechanical resonator was demonstrated for the first time last year in a different type of device, but the quantum states in this new device should be much longer lived, allowing direct tests of fundamental principles of quantum mechanics. As a first step, the authors perform a quantum-limited position measurement that is only a factor of about five away from the Heisenberg limit.

Date: 2011
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DOI: 10.1038/nature10261

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